Rotary pump.



0; WENSLAY.

ROTARY PUMP.v APPLICATION FILED OCT. 22,1915.

l Patented :we@. 26,1916.

3 SHEETS-SHEET I Witnesses \.f y Y Enventof,

@.WENSLAY. ROTARY FUMP.`

` I APPLICATION FILED OCT. 22, 1935. I 1,209,916. Patent-@ 1 Deo. 26 1916.

s sHETs-sHEET 2.

Attorneys.

o. WENSLAY.

ROTARY PUMP; 'i APPLICATION FILED OCT. 22. `191.5.

Patented `Dec. 26,v 1916.

3 SHEET SHEET 3 I". MNMWX Witnesses Attrneys,

UNITED STATES PATENT oFFIoE.

OLE WENSLAY, OF ENID, OKLAHOMA,

ASSIGNOR OF ONE-FIFTH TO BENJAMIN F.

GILIIN, ONE-FIFTH TO CLARENCE M. COOK, ONE-FIFTH'. TO LAURENCE COOK, AND ONE-FIFTH T0 JOHN COOK, ALL OF GBLRBER, OKLAHOMA. y

ROTARY YUM?.

multi-l llatented Dec. 26, 1916.

Application mea october as, 1915. serial no. sacos.

To all rwhom may ff-acera Be it known that i, OLE WENSLAY, a citizen of the United States, residing at Enid, in the county of Garfield and State of Oklahoma, have invented a new and useful Rotary Pump, of 4which the following is a specification.

This invention relates to rotary pumps of that type utilizing a piston in the form of a drum mounted for oscillation relative to a Slidable abutment.

One of the objects of the invention is to rovide a drum-like hollow piston having an lntake of uniform width extending from one side to the other thereof whereby water entering and leaving the interior of the piston be subjected tothe retarding iniuences which would be exerted by a restricted opening, but will iow freely to and from position within the piston.

A further object is to provide a novel arrangement of ports relative to the piston by means of which a continuous outflow of i water from the pump is insured, the contents of the piston being expelled immediately following the discharge of the contents of the pump casing and such discharge continuing from the interior of thepiston until the piston again becomes active to force liquid from the pump casing.

A still further object is to provide a pump having a novel arrangement of chambers in communication with the interior of the casing and with the intake and outflow pipes whereby better results are obtained than would otherwise be possible, said chambers, when full of water, providing water vcushionswhereby downflow of the columns of water in the intake and outflow ipes is mor i ing being mentarily halted while the discharge of water from the pump is being transferred. from between the vpiston and the casing to between the piston and an interior abutment. Another vobject is to simplify and improve upon the structure of the pump,

provided for the piston actuating means and being located entirely within the casing of the pump so that distortion of the piston or its operating means is prevented and vibration eliminated.

A still further object is to rovide improved means for housing the slldable abutto prevent leakage along the shaft.

a long bean ment whereby leakage oi water pastthe abutment and through the casing is prevented.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the comn bination and arrangement of parts and in the details. of construction hereinafter de scribed and' claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, can be made within the scope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawings the preerred form of the invention has been shown.

ln said drawings: Figure l is a front elevation of the pump, the tace plate being removed and the cap housing the slidable abutment being shown in section. Fig. .2 is a central vertical section through the pump, said section being taken on the line A-B Fig. l, the drive shaft and its gear being shown in elevation. Fig. 3 is a section on line O-D Fig. 2. Fig. i is a section on line E-F Fig. l. Fig. 5 is a perspective View of the piston. Fig. 6 is a oer spective view of the piston engaging cam.

Referring to the figures by characters of reference l designates a base on which are secured the legs of a pump casing 3, this pump casing having a cylindrical piston chamber 4 therein provided with a concentric wall 5 `therein forming a housing for va bearing 6 which is formed integral with one head of the pump casing and extends a desired distance into the space inclosed by the wall 5. This bearing 6 is engaged by a shaft and a` packing gland 8 is preferably arranged in the head 9 of the casing 3 so as Said shaft has a'gear l() secured to it and which receives motion through a gear l1 from a drive shaft 12. Said shaft 12 as well as the shaft 7 is journal/ed in an upstanding bearing member l5 secured on the Vbase l.

additional bearing member 14 maybe provided for the shaft l2. It is to be understood of course that the head 9 is preferably formed integral with the wall of casing 3' a plate insertible longitudinally in grooves 1G and 17 formed in the wall 5 and in the top of the casing 3 respectively. This abutment extends from the head tl outwardly to the end of the wall 5 and the upper end of the abutment is' preferably thickened,

Shown at 1S.

The wall of casing 3 is enlarged at the top, as shown at 19 and has chambers 2O and 21 formed therein and extending in opposito directions` from the abutment 13, these chambers extending from head 9 outwardly to the end ot' abutment 13 and being provided, along opposite sides of thc abutment, with ports and 23 respectively. These ports are of uniform width and are of the saine length as the chambers 2O and 21. It will be noted that said chambers 2O and 2l are inclined downrmrdly away from abutment 13 thus to constitute pockets. An opening 2l is foiiiied in the top of the charnber 2l for the reception of an intake pipe 25 while another opening 26 is formed .in the top of chamber 20 for the reception of an outflow pipe 27. l

Secured to that end of shaft 7 within the pump casing is a collar 23 haring an out-l standing stud 29 on which is pivotally mounted an arcuate cam 30 carrying a stud 3l. A spring 32 is secured in any suitable manner to the collar 23 and bears at its free end against that end of cani 30 remote from the stud 31 so as thus to hold the stud 29 normally pressed outwardly from the center of the collar 28. The, spring 32 is preferably secured in place by extending one end thereof between pins 33 extending from the collar 28 and disposed close together, the said spring being coiled about these'pins as shown particularly7 in Fig, 3.

A hollow drum-like piston 3i houses the wall ti and has a closed end 35 which fits snugly against the adjoining end of the wall 5. This end 35 of the piston has a central ope-ning 36 into which the stud 31. projects,

said stud thus constituting a bearing for the piston. A port 37 ot uniform width is formed in the periphery of the piston34f and extends from one end to the other thereof, the abutment 13 being extended through this port. Formed in the closed end 35 of the piston at the center of one end of port 37 is a circular opening 38 from which extends a slot 39 opening into the end of slot 37. Opening 38 receives a substantially circular tongue 40 `formed at one end of a sliding abutment 41, there being a neck or reduced portion Ll2 between tongue 40 and t-he abutment 41 and which extends within the slot 39. Abutment al has a longitudinal groove 43 in the inner face thereof which receives' the head of the fixed abutment 13 so that the slidable abutment is thus guided and constitutes an anchorin means for the piston. The abutment is n opted to be hound,

when raised, within a cap 44 secured upon the top of the casing 3 in any suitable manner, as by ineans of bolts 45, this cap serving to prevent leakage from the pump of any water which might work along the abutment al.

The width of the port 37 is substantially equal to the distance between the remote sides of the ports 22 and 23, as will be seen by referring to F ig. 3 so that, when the piston 3i is in its uppermost position, the walls of port 37 will practically register with the corresponding walls of the ports 22 and 23. -When the piston is raised, it being held in elevated position by the spring pressed cam 30 and the stud 31, the lower portion of the piston will contact with the lowermost portion of the Wall 5 while communication between the port-s and 23 and the space between the piston 34 and the casing 3 will be closed. A face plate or head 46 is secured to the easing 3 and fits snugly against the end 35 of piston 34 and against the outer face of the slidable abutment 41.

Assuming that the parts of the pump are in the positions previously described and as shown in Fig. 3 and that the shaft 7 is rotating in the direction indicated by the arrow in Fig. 3, then it will be apparent that Water trapped in the space X will be expelled through the port 37 and into the port 22 for the reason that stud 3l will press the center of the piston to the right in Fig. 3, the piston rocking about the anchorin tongue 40 and swinging laterally and sli ing down` wardly along the inner surface of the casing Sat the right thereof. Thus water will be drawn into the gradually enlarging space Y in piston 34 while the water previousl di-` rected into the space Z between the piston and the easing 3 will be graduall ,expelled in the direction of arrow a in lyig. 3 and through port 22 into chamber 20 and thence into the outflow pipe 27. The piston works:`

dowinvarflly along the wall of casing 3 and thence upwardly therealong until it reaches its uppermost position, as shown in Fi 3. Thus water is continuously discharged from the space Z until the piston approaches the position shown in'Fig. 3. Just prior to the piston arriving at this position, the wall 5 and 'the inner surface of the piston coperate to expel Water from the space X with the result that as the flow is cut off from the` space Z to the port 22, a stream is being expelledinto tlie port 22 from the space X. Thus a continuous outflow of water is obtained.

Attention is called to the fact that the ports 22 and 23 are of uniform width and the same is likewise true of the port 37 so that there is no restricted opening for retarding the intake or outflow of water. It will be seen furthermore that the chnlben 20 and 21 we interposed between the ports BEST AVAILABLE oop and 23 and the openings 2@ end 24 relatively. These chambers are inclined :mwardly and outwardly from the :ibutnt 13 so as to form pockets whereb 'a lhioning body of water 'is maintaine in a chambers QOand- 21 at all times7 it havg been found in actual' practice that the )vision of these pockets containing bodies Water7 produces better results in lifting ter.' Furthermore it .allows the use. of -ses 25 and 27 in communication with ports and .'22 located close together, a structure lich would not be feasible 'without the use thechambers 20 and 2 1.A It is necessary at these ports be located close together as own, as otherwise, communication between id ports and the space Z would not be cut 1' and restablished atthe proper times uing the actuation of the piston. Importance is at'tachedto the particular rangement of the bearing member 6 which.

housed in the casing of the ump so that e shaft is provided with allong bearing 'eventing vibrutin and distortion of the aft and shifting of the pistgn is prevented hereas, should the bearing be extended ltwardly from the casing, suchvibration 1d shifting could not be eliminated. Furrermore by having the bearing, the wall 5 1d the abutment extending from the inte- :al head 9 ofthe casing, the entire pump in be mede of fewer parts, the single reovnble head being in the form of a plate hich can be readily a plied to or removed lom the casing 3. Siilch removal of the end 4.6 will not result in the disarrange- Lent of the interior or working parts of 1e pump, as would be the case should cerxin of the Working parts be carried by the emovable head.

ment radiating from the housing and bisecting a peripheral opening in the piston, there being ports in said casing constantly in communication with :the interior of the piston at opposite sides of the abutment, a,

slidable abutmentfmounted upon the fixed abutment and pivotally engaged by the pis# ton, a shaft journaled -within the bearm and terminatingin the space between sai bearing and the closed end of the piston, a collar secured to said projecting portion of the Shaft, a cam collar, a vstud projecting from the cam and journaled within the center of the closed end of the piston, and a spring carried by the collar and engaging the cam to hold said stud eccentric wlth the collar, said collar, cam and spring being interposed between the inner or free end of the bearing and the closed end of the piston.

In testimony. that I claim the foregoing ivotally` mounted on theas my own, I have hereto affixed my signature in the presence of two witnesses.

OLE VYIilTSItAY.l

lVitnesses:

HERBERT D. LAWsoN,' R. W. HonoLAND. 

